● What are the Catalog tables in Hbase?

● What is Zookeeper role in hbase architecture?

● How will you drop a table in Hbase?

● Do you know Hive on hbase? how will you achieve it?(Hbasestorage handler)..If we delete a table from hive will it effect on hbase table?

● effect on hbase table?

● How will you load bulk data of 50GB file into Hbase table?

● Limitations of Hbase?(no support for sql syntax, indexing, joins,..)

● Difference between Hbase and Hdfs?

● How do we integrate HBase and Hive?

● How can we add/remove a node to HBase cluster?

● Can we safely move the HBase root directory in HDFS?

● Can we safely move the master from node A to node B?

● How do we fix OutOfMemoryExceptions in hbase?

● How can we change logging level in HBase?

● What ports does HBase use?

● Some times HBase is ignoring HDFS client configuration such as dfs.replication. what is the cause?

● What is the maximum recommended cell size?

● Why can’t I iterate through the rows of a table in reverse order?

● What is phoenix?

● How fast is Phoenix? Why is it so fast?

● Why is Phoenix fast even when doing full scan?

● What is column family?

● what is Surrogate key?

● what is HCatalog?

● why you used HBASE in your project ?